[V2,1/2] rasdaemon: add support for non standard CPER section events

[Tyler Baicar <tbaicar@codeaurora.org>]

Add support to handle the non standard CPER section kernel trace
events which cover RAS errors who's section type is unknown.

Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org>
Cc: Shiju Jose <shiju.jose@huawei.com>
---
 Makefile.am                |   3 +
 configure.ac               |   9 +++
 ras-events.c               |  15 +++++
 ras-events.h               |   8 +++
 ras-non-standard-handler.c | 147 +++++++++++++++++++++++++++++++++++++++++++++
 ras-non-standard-handler.h |  26 ++++++++
 ras-record.c               |  59 ++++++++++++++++++
 ras-record.h               |  15 +++++
 ras-report.c               |  82 +++++++++++++++++++++++++
 ras-report.h               |  18 +++++-
 10 files changed, 381 insertions(+), 1 deletion(-)
 create mode 100644 ras-non-standard-handler.c
 create mode 100644 ras-non-standard-handler.h

diff --git a/Makefile.am b/Makefile.am
index c9e4481..1bc25e4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -24,6 +24,9 @@ endif
 if WITH_AER
    rasdaemon_SOURCES += ras-aer-handler.c
 endif
+if WITH_NON_STANDARD
+   rasdaemon_SOURCES += ras-non-standard-handler.c
+endif
 if WITH_MCE
    rasdaemon_SOURCES += ras-mce-handler.c mce-intel.c mce-amd-k8.c \
 			mce-intel-p4-p6.c mce-intel-nehalem.c \
diff --git a/configure.ac b/configure.ac
index 559f70a..2adb798 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,6 +44,15 @@ AS_IF([test "x$enable_aer" = "xyes"], [
 ])
 AM_CONDITIONAL([WITH_AER], [test x$enable_aer = xyes])
 
+AC_ARG_ENABLE([non_standard],
+    AS_HELP_STRING([--enable-non-standard], [enable NON_STANDARD events (currently experimental)]))
+
+AS_IF([test "x$enable_non_standard" = "xyes"], [
+  AC_DEFINE(HAVE_NON_STANDARD,1,"have UNKNOWN_SEC events collect")
+  AC_SUBST([WITH_NON_STANDARD])
+])
+AM_CONDITIONAL([WITH_NON_STANDARD], [test x$enable_non_standard = xyes])
+
 AC_ARG_ENABLE([mce],
     AS_HELP_STRING([--enable-mce], [enable MCE events (currently experimental)]))
 
diff --git a/ras-events.c b/ras-events.c
index 0be7c3f..96aa6f1 100644
--- a/ras-events.c
+++ b/ras-events.c
@@ -29,6 +29,7 @@
 #include "libtrace/event-parse.h"
 #include "ras-mc-handler.h"
 #include "ras-aer-handler.h"
+#include "ras-non-standard-handler.h"
 #include "ras-mce-handler.h"
 #include "ras-extlog-handler.h"
 #include "ras-record.h"
@@ -208,6 +209,10 @@ int toggle_ras_mc_event(int enable)
 	rc |= __toggle_ras_mc_event(ras, "ras", "extlog_mem_event", enable);
 #endif
 
+#ifdef HAVE_NON_STANDARD
+	rc |= __toggle_ras_mc_event(ras, "ras", "non_standard_event", enable);
+#endif
+
 free_ras:
 	free(ras);
 	return rc;
@@ -676,6 +681,16 @@ int handle_ras_events(int record_events)
 		    "ras", "aer_event");
 #endif
 
+#ifdef HAVE_NON_STANDARD
+        rc = add_event_handler(ras, pevent, page_size, "ras", "non_standard_event",
+                               ras_non_standard_event_handler);
+        if (!rc)
+                num_events++;
+        else
+                log(ALL, LOG_ERR, "Can't get traces from %s:%s\n",
+                    "ras", "non_standard_event");
+#endif
+
 	cpus = get_num_cpus(ras);
 
 #ifdef HAVE_MCE
diff --git a/ras-events.h b/ras-events.h
index 64e045a..3e1008f 100644
--- a/ras-events.h
+++ b/ras-events.h
@@ -68,6 +68,14 @@ enum hw_event_mc_err_type {
 	HW_EVENT_ERR_INFO,
 };
 
+/* Should match the code at Kernel's include/acpi/ghes.h */
+enum ghes_severity {
+	GHES_SEV_NO,
+	GHES_SEV_CORRECTED,
+	GHES_SEV_RECOVERABLE,
+	GHES_SEV_PANIC,
+};
+
 /* Function prototypes */
 int toggle_ras_mc_event(int enable);
 int handle_ras_events(int record_events);
diff --git a/ras-non-standard-handler.c b/ras-non-standard-handler.c
new file mode 100644
index 0000000..72e0798
--- /dev/null
+++ b/ras-non-standard-handler.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "libtrace/kbuffer.h"
+#include "ras-non-standard-handler.h"
+#include "ras-record.h"
+#include "ras-logger.h"
+#include "ras-report.h"
+
+void print_le_hex(struct trace_seq *s, const uint8_t *buf, int index) {
+	trace_seq_printf(s, "%02x%02x%02x%02x", buf[index+3], buf[index+2], buf[index+1], buf[index]);
+}
+
+static char *uuid_le(const char *uu)
+{
+	static char uuid[sizeof("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx")];
+	char *p = uuid;
+	int i;
+	static const unsigned char le[16] = {3,2,1,0,5,4,7,6,8,9,10,11,12,13,14,15};
+
+	for (i = 0; i < 16; i++) {
+		p += sprintf(p, "%.2x", uu[le[i]]);
+		switch (i) {
+		case 3:
+		case 5:
+		case 7:
+		case 9:
+			*p++ = '-';
+			break;
+		}
+	}
+
+	*p = 0;
+
+	return uuid;
+}
+
+int ras_non_standard_event_handler(struct trace_seq *s,
+			 struct pevent_record *record,
+			 struct event_format *event, void *context)
+{
+	int len, i, line_count;
+	unsigned long long val;
+	struct ras_events *ras = context;
+	time_t now;
+	struct tm *tm;
+	struct ras_non_standard_event ev;
+
+	/*
+	 * Newer kernels (3.10-rc1 or upper) provide an uptime clock.
+	 * On previous kernels, the way to properly generate an event would
+	 * be to inject a fake one, measure its timestamp and diff it against
+	 * gettimeofday. We won't do it here. Instead, let's use uptime,
+	 * falling-back to the event report's time, if "uptime" clock is
+	 * not available (legacy kernels).
+	 */
+
+	if (ras->use_uptime)
+		now = record->ts/user_hz + ras->uptime_diff;
+	else
+		now = time(NULL);
+
+	tm = localtime(&now);
+	if (tm)
+		strftime(ev.timestamp, sizeof(ev.timestamp),
+			 "%Y-%m-%d %H:%M:%S %z", tm);
+	trace_seq_printf(s, "%s ", ev.timestamp);
+
+	if (pevent_get_field_val(s, event, "sev", record, &val, 1) < 0)
+		return -1;
+	switch (val) {
+	case GHES_SEV_NO:
+		ev.severity = "Informational";
+		break;
+	case GHES_SEV_CORRECTED:
+		ev.severity = "Corrected";
+		break;
+	case GHES_SEV_RECOVERABLE:
+		ev.severity = "Recoverable";
+		break;
+	default:
+	case GHES_SEV_PANIC:
+		ev.severity = "Fatal";
+	}
+	trace_seq_puts(s, ev.severity);
+
+	ev.sec_type = pevent_get_field_raw(s, event, "sec_type", record, &len, 1);
+	if(!ev.sec_type)
+		return -1;
+	trace_seq_printf(s, "\n section type: %s", uuid_le(ev.sec_type));
+	ev.fru_text = pevent_get_field_raw(s, event, "fru_text",
+						record, &len, 1);
+	ev.fru_id = pevent_get_field_raw(s, event, "fru_id",
+						record, &len, 1);
+	trace_seq_printf(s, " fru text: %s fru id: %s ",
+				ev.fru_text,
+				uuid_le(ev.fru_id));
+
+	if (pevent_get_field_val(s, event, "len", record, &val, 1) < 0)
+		return -1;
+	ev.length = val;
+	trace_seq_printf(s, "\n length: %d\n", ev.length);
+
+	ev.error = pevent_get_field_raw(s, event, "buf", record, &len, 1);
+	if(!ev.error)
+		return -1;
+	len = ev.length;
+	i = 0;
+	line_count = 0;
+	trace_seq_printf(s, " error:\n  %08x: ", i);
+	while(len >= 4) {
+		print_le_hex(s, ev.error, i);
+		i+=4;
+		len-=4;
+		if(++line_count == 4) {
+			trace_seq_printf(s, "\n  %08x: ", i);
+			line_count = 0;
+		} else
+			trace_seq_printf(s, " ");
+	}
+
+	/* Insert data into the SGBD */
+#ifdef HAVE_SQLITE3
+	ras_store_non_standard_record(ras, &ev);
+#endif
+
+#ifdef HAVE_ABRT_REPORT
+	/* Report event to ABRT */
+	ras_report_non_standard_record(ras, &ev);
+#endif
+
+	return 0;
+}
diff --git a/ras-non-standard-handler.h b/ras-non-standard-handler.h
new file mode 100644
index 0000000..2b5ac35
--- /dev/null
+++ b/ras-non-standard-handler.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __RAS_NON_STANDARD_HANDLER_H
+#define __RAS_NON_STANDARD_HANDLER_H
+
+#include "ras-events.h"
+#include "libtrace/event-parse.h"
+
+int ras_non_standard_event_handler(struct trace_seq *s,
+			 struct pevent_record *record,
+			 struct event_format *event, void *context);
+
+void print_le_hex(struct trace_seq *s, const uint8_t *buf, int index);
+
+#endif
diff --git a/ras-record.c b/ras-record.c
index 3dc4493..357ab61 100644
--- a/ras-record.c
+++ b/ras-record.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2013 Mauro Carvalho Chehab <mchehab@redhat.com>
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -157,6 +158,57 @@ int ras_store_aer_event(struct ras_events *ras, struct ras_aer_event *ev)
 }
 #endif
 
+/*
+ * Table and functions to handle ras:non standard
+ */
+
+#ifdef HAVE_NON_STANDARD
+static const struct db_fields non_standard_event_fields[] = {
+		{ .name="id",			.type="INTEGER PRIMARY KEY" },
+		{ .name="timestamp",		.type="TEXT" },
+		{ .name="sec_type",		.type="BLOB" },
+		{ .name="fru_id",		.type="BLOB" },
+		{ .name="fru_text",		.type="TEXT" },
+		{ .name="severity",		.type="TEXT" },
+		{ .name="error",		.type="BLOB" },
+};
+
+static const struct db_table_descriptor non_standard_event_tab = {
+	.name = "non_standard_event",
+	.fields = non_standard_event_fields,
+	.num_fields = ARRAY_SIZE(non_standard_event_fields),
+};
+
+int ras_store_non_standard_record(struct ras_events *ras, struct ras_non_standard_event *ev)
+{
+	int rc;
+	struct sqlite3_priv *priv = ras->db_priv;
+
+	if (!priv || !priv->stmt_non_standard_record)
+		return 0;
+	log(TERM, LOG_INFO, "non_standard_event store: %p\n", priv->stmt_non_standard_record);
+
+	sqlite3_bind_text (priv->stmt_non_standard_record,  1, ev->timestamp, -1, NULL);
+	sqlite3_bind_blob (priv->stmt_non_standard_record,  2, ev->sec_type, -1, NULL);
+	sqlite3_bind_blob (priv->stmt_non_standard_record,  3, ev->fru_id, 16, NULL);
+	sqlite3_bind_text (priv->stmt_non_standard_record,  4, ev->fru_text, -1, NULL);
+	sqlite3_bind_text (priv->stmt_non_standard_record,  5, ev->severity, -1, NULL);
+	sqlite3_bind_blob (priv->stmt_non_standard_record,  6, ev->error, ev->length, NULL);
+
+	rc = sqlite3_step(priv->stmt_non_standard_record);
+	if (rc != SQLITE_OK && rc != SQLITE_DONE)
+		log(TERM, LOG_ERR,
+		    "Failed to do non_standard_event step on sqlite: error = %d\n", rc);
+	rc = sqlite3_reset(priv->stmt_non_standard_record);
+	if (rc != SQLITE_OK && rc != SQLITE_DONE)
+		log(TERM, LOG_ERR,
+		    "Failed reset non_standard_event on sqlite: error = %d\n", rc);
+	log(TERM, LOG_INFO, "register inserted at db\n");
+
+	return rc;
+}
+#endif
+
 #ifdef HAVE_EXTLOG
 static const struct db_fields extlog_event_fields[] = {
 		{ .name="id",			.type="INTEGER PRIMARY KEY" },
@@ -450,6 +502,13 @@ int ras_mc_event_opendb(unsigned cpu, struct ras_events *ras)
 					 &mce_record_tab);
 #endif
 
+#ifdef HAVE_NON_STANDARD
+	rc = ras_mc_create_table(priv, &non_standard_event_tab);
+	if (rc == SQLITE_OK)
+		rc = ras_mc_prepare_stmt(priv, &priv->stmt_non_standard_record,
+					&non_standard_event_tab);
+#endif
+
 		ras->db_priv = priv;
 	return 0;
 }
diff --git a/ras-record.h b/ras-record.h
index 5d84297..473ae40 100644
--- a/ras-record.h
+++ b/ras-record.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2013 Mauro Carvalho Chehab <mchehab@redhat.com>
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -56,9 +57,18 @@ struct ras_extlog_event {
 	unsigned short cper_data_length;
 };
 
+struct ras_non_standard_event {
+	char timestamp[64];
+	const char *sec_type, *fru_id, *fru_text;
+	const char *severity;
+	const uint8_t *error;
+	uint32_t length;
+};
+
 struct ras_mc_event;
 struct ras_aer_event;
 struct ras_extlog_event;
+struct ras_non_standard_event;
 struct mce_event;
 
 #ifdef HAVE_SQLITE3
@@ -77,6 +87,9 @@ struct sqlite3_priv {
 #ifdef HAVE_EXTLOG
 	sqlite3_stmt	*stmt_extlog_record;
 #endif
+#ifdef HAVE_NON_STANDARD
+	sqlite3_stmt	*stmt_non_standard_record;
+#endif
 };
 
 int ras_mc_event_opendb(unsigned cpu, struct ras_events *ras);
@@ -84,6 +97,7 @@ int ras_store_mc_event(struct ras_events *ras, struct ras_mc_event *ev);
 int ras_store_aer_event(struct ras_events *ras, struct ras_aer_event *ev);
 int ras_store_mce_record(struct ras_events *ras, struct mce_event *ev);
 int ras_store_extlog_mem_record(struct ras_events *ras, struct ras_extlog_event *ev);
+int ras_store_non_standard_record(struct ras_events *ras, struct ras_non_standard_event *ev);
 
 #else
 static inline int ras_mc_event_opendb(unsigned cpu, struct ras_events *ras) { return 0; };
@@ -91,6 +105,7 @@ static inline int ras_store_mc_event(struct ras_events *ras, struct ras_mc_event
 static inline int ras_store_aer_event(struct ras_events *ras, struct ras_aer_event *ev) { return 0; };
 static inline int ras_store_mce_record(struct ras_events *ras, struct mce_event *ev) { return 0; };
 static inline int ras_store_extlog_mem_record(struct ras_events *ras, struct ras_extlog_event *ev) { return 0; };
+static inline int ras_store_non_standard_record(struct ras_events *ras, struct ras_non_standard_event *ev) { return 0; };
 
 #endif
 
diff --git a/ras-report.c b/ras-report.c
index 0a05732..3e508a5 100644
--- a/ras-report.c
+++ b/ras-report.c
@@ -1,3 +1,16 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
@@ -196,6 +209,27 @@ static int set_aer_event_backtrace(char *buf, struct ras_aer_event *ev){
 	return 0;
 }
 
+static int set_non_standard_event_backtrace(char *buf, struct ras_non_standard_event *ev){
+	char bt_buf[MAX_BACKTRACE_SIZE];
+
+	if(!buf || !ev)
+		return -1;
+
+	sprintf(bt_buf, "BACKTRACE="    \
+						"timestamp=%s\n"        \
+						"error_count=%d\n"       \
+						"severity=%d\n" \
+						"length=%d\n",     \
+						ev->timestamp,  \
+						ev->error_count, \
+						ev->severity,   \
+						ev->length);
+
+	strcat(buf, bt_buf);
+
+	return 0;
+}
+
 static int commit_report_backtrace(int sockfd, int type, void *ev){
 	char buf[MAX_BACKTRACE_SIZE];
 	char *pbuf = buf;
@@ -218,6 +252,9 @@ static int commit_report_backtrace(int sockfd, int type, void *ev){
 	case MCE_EVENT:
 		rc = set_mce_event_backtrace(buf, (struct mce_event *)ev);
 		break;
+	case NON_STANDARD_EVENT:
+		rc = set_non_standard_event_backtrace(buf, (struct ras_non_standard_event *)ev);
+		break;
 	default:
 		return -1;
 	}
@@ -345,6 +382,51 @@ aer_fail:
 	}
 }
 
+int ras_report_non_standard_event(struct ras_events *ras, struct ras_non_standard_event *ev){
+	char buf[MAX_MESSAGE_SIZE];
+	int sockfd = 0;
+	int rc = -1;
+
+	memset(buf, 0, sizeof(buf));
+
+	sockfd = setup_report_socket();
+	if(sockfd < 0){
+		return rc;
+	}
+
+	rc = commit_report_basic(sockfd);
+	if(rc < 0){
+		goto non_standard_fail;
+	}
+
+	rc = commit_report_backtrace(sockfd, NON_STANDARD_EVENT, ev);
+	if(rc < 0){
+		goto non_standard_fail;
+	}
+
+	sprintf(buf, "ANALYZER=%s", "rasdaemon-non-standard");
+	rc = write(sockfd, buf, strlen(buf) + 1);
+	if(rc < strlen(buf) + 1){
+		goto non_standard_fail;
+	}
+
+	sprintf(buf, "REASON=%s", "Unknown CPER section problem");
+	rc = write(sockfd, buf, strlen(buf) + 1);
+	if(rc < strlen(buf) + 1){
+		goto non_standard_fail;
+	}
+
+	rc = 0;
+
+non_standard_fail:
+
+	if(sockfd > 0){
+		close(sockfd);
+	}
+
+	return rc;
+}
+
 int ras_report_mce_event(struct ras_events *ras, struct mce_event *ev){
 	char buf[MAX_MESSAGE_SIZE];
 	int sockfd = 0;
diff --git a/ras-report.h b/ras-report.h
index 7920cdf..c2fcf42 100644
--- a/ras-report.h
+++ b/ras-report.h
@@ -1,3 +1,16 @@
+/*
+ * Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 #ifndef __RAS_REPORT_H
 #define __RAS_REPORT_H
 
@@ -19,7 +32,8 @@
 enum {
 	MC_EVENT,
 	MCE_EVENT,
-	AER_EVENT
+	AER_EVENT,
+	NON_STANDARD_EVENT
 };
 
 #ifdef HAVE_ABRT_REPORT
@@ -27,12 +41,14 @@ enum {
 int ras_report_mc_event(struct ras_events *ras, struct ras_mc_event *ev);
 int ras_report_aer_event(struct ras_events *ras, struct ras_aer_event *ev);
 int ras_report_mce_event(struct ras_events *ras, struct mce_event *ev);
+int ras_report_non_standard_event(struct ras_events *ras, struct ras_non_standard_event *ev);
 
 #else
 
 static inline int ras_report_mc_event(struct ras_events *ras, struct ras_mc_event *ev) { return 0; };
 static inline int ras_report_aer_event(struct ras_events *ras, struct ras_aer_event *ev) { return 0; };
 static inline int ras_report_mce_event(struct ras_events *ras, struct mce_event *ev) { return 0; };
+static inline int ras_report_non_standard_event(struct ras_events *ras, struct ras_non_standard_event *ev) { return 0; };
 
 #endif